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Compiler crash when index type not found #12572
Description
TypeScript Version: 2.1.1
Code
Compile the following file, with the compiler flag -d
export interface Test {
[index: TypeNotFound]: any;
}
Expected behavior:
The following errors get printed to console, (errors copied from compiling without -d flag).
test.ts(3,6): error TS1023: An index signature parameter type must be 'string' or 'number'.
test.ts(3,13): error TS2304: Cannot find name 'TypeNotFound'.
Actual behavior:
The compiler crashes with the following stack trace
Error: Debug Failure. False expression: This is unknown parent for parameter: 154
at Object.assert (/usr/local/lib/node_modules/typescript/lib/tsc.js:1697:23)
at Object.fail (/usr/local/lib/node_modules/typescript/lib/tsc.js:1702:19)
at getParameterDeclarationTypeVisibilityDiagnosticMessage (/usr/local/lib/node_modules/typescript/lib/tsc.js:44696:34)
at Object.getParameterDeclarationTypeVisibilityError [as getSymbolAccessibilityDiagnostic] (/usr/local/lib/node_modules/typescript/lib/tsc.js:44643:41)
at handleSymbolAccessibilityError (/usr/local/lib/node_modules/typescript/lib/tsc.js:43565:40)
at emitEntityName (/usr/local/lib/node_modules/typescript/lib/tsc.js:43699:17)
at emitTypeReference (/usr/local/lib/node_modules/typescript/lib/tsc.js:43715:17)
at emitType (/usr/local/lib/node_modules/typescript/lib/tsc.js:43660:28)
at writeTypeOfDeclaration (/usr/local/lib/node_modules/typescript/lib/tsc.js:43590:17)
at emitParameterDeclaration (/usr/local/lib/node_modules/typescript/lib/tsc.js:44640:17)
Activity
Handle parameter type error for index signature in declaration emit